Published Mar 11, 2017 at 8:29 AM

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Sixty firefighters from fire departments across Santa Clara and San Mateo counties on the scene of a three-alarm fire at a Stanford Medical School building. (March 10, 2017)

Firefighters knocked down a three-alarm fire that broke out early Saturday in a room with bio-hazardous waste, triggering a hazmat situation at the Stanford Medical School, Palo Alto fire officials said.

The blaze broke out in a third-floor room of the Edwards Building at 300 Pasteur Drive before 8 a.m. Hazmat and decontamination crews were on hand, officials said, and roads in the vicinity of Welch Drive and Pasteur Road were shut down.

Although the area surrounding the room on fire was evacuated, a sprinkler system contained the flames to a single unit, which firefighters then extinguished, according to officials. The fire did not impact patient care at Stanford Hospital, and no injuries have been reported, they said.

Sixty firefighters from departments across San Mateo and Santa Clara counties responded to the fire, according to Palo Alto fire officials. Nine engines, five trucks, one hazmat team, two ambulances and five command chiefs were also at the scene.